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United States Patent |
5,605,978
|
Maresca
,   et al.
|
February 25, 1997
|
Block polysiloxane-polycarbonate copolymer blends with polyamides
Abstract
Thermoplastic molding compositions comprising blends of a block
polysiloxane--polycarbonate copolymer and a polyamide resin are useful for
extruding articles such as films.
Inventors:
|
Maresca; Louis M. (Pittsfield, MA);
Naar; Raymond Z. (Delmar, NY)
|
Assignee:
|
General Electric Company (Pittsfield, MA)
|
Appl. No.:
|
542101 |
Filed:
|
October 12, 1995 |
Current U.S. Class: |
525/431; 525/433 |
Intern'l Class: |
C08L 077/06; C08L 069/00 |
Field of Search: |
525/431,437
|
References Cited
U.S. Patent Documents
4027072 | May., 1977 | Molari | 428/412.
|
4086295 | Apr., 1978 | Mori et al. | 525/433.
|
4387193 | Jun., 1983 | Giles | 525/431.
|
4430484 | Feb., 1984 | Quinn | 525/433.
|
4732934 | Mar., 1988 | Hathaway et al. | 525/431.
|
4735999 | Apr., 1988 | Patterson et al. | 525/431.
|
Foreign Patent Documents |
0068368 | Apr., 1984 | JP | 525/433.
|
Primary Examiner: Dean; Ralph H.
Parent Case Text
This is a continuation of Ser. No. 08/255,835 filed on Jun. 7, 1994 now
abandoned, which is a continuation of Ser. No. 08/065,074 filed May
19,1993 now abandoned, which is a continuation of Ser. No. 07/397,334
filed Aug. 22, 1989 now abandoned, which is a continuation of Ser. No.
07/109,121 filed Oct. 16, 1987 now abandoned.
Claims
What is claimed is:
1. A thermoplastic molding composition, which consists essentially of from
55% to 95% by weight of a solidified melt blend of a block
polysiloxane-polycarbonate copolymer which is the reaction product of (A)
a halogen chain-stopped polydiorganosiloxane composed of from about 5 to
200 chemically combined diorganosiloxy units consisting essentially of
dialkylsiloxy units which are connected to each other by
silicon-oxygen-silicon linkages wherein each of the silicon atoms has two
organo radicals attached through a carbon-silicon bond, and (B) a dihydric
phenol having the formula:
##STR4##
where Z is a member selected from the group consisting of hydrogen, lower
alkyl and halogen and combinations, thereof, and R is a member selected
from the group consisting of hydrogen, hydrocarbyl and halogenated
hydrocarbyl; and phosgenating the purified reaction product with or
without additional dihydric phenol until the resulting copolymer achieves
a maximum intrinsic viscosity and from 45% to 5% by weight of a
thermoplastic polyamide resin having a number average molecular weight of
from about 12,000 to about 60,000 g/mole whereby articles molded therefrom
are resistant to delamination and have a notched Izod impact of at least
about 630 J/m when tested according to ASTM D-256.
2. The composition of claim 1 wherein the copolymer has recurring chain
units of the formula:
##STR5##
wherein Z is a member selected from the group consisting of hydrogen,
lower alkyl and halogen and combinations, thereof, and R is a member
selected from the group consisting of hydrogen, hydrocarbyl and
halogenated hydrocarbyl; R' represents lower alkyl; x is an integer of 1
to 200 and y represents an integer such that x+y is 2 to 1000.
3. The composition of claim 1 wherein the polyamide resin comprises the
polymerization product of:
(a) terephthalic acid with, trimethylhexamethylenediamine; or
(b) isophthalic acid with trimethylhexamethylenediamine; or
(c) adipic acid, azelaic acid and 2,2-bis(p-aminocyclohexyl)propane; or
(d) terephthalic acid with bis (4-amino cyclohexyl)methane; or
(e) isophthalic acid with hexamethylenediamine; or
(f) terephthalic acid/isophthalic acid with hexamethylenediamine; or
(g) isophthalic and with hexamethylene diamine and metaxylylene diamine; or
(h) adipic acid/azelaic acid with diphenyl methane diisocyanate.
4. The composition of claim 1 wherein the polyamide resin is Nylon 6/6,
Nylon 6/3, Nylon 6/4, Nylon 6/9, Nylon 6/10, Nylon 6/12, Nylon 6, Nylon
11, Nylon 12 or Nylon 4/6.
5. An article molded from the composition of claim 1.
Description
BACKGROUND OF THE INVENTION
1. Field of The Invention
The invention relates to thermoplastic molding compositions of synthetic
polymeric resins and in particular to blends of diverse resins including a
polyamide and a block polysiloxane--polycarbonate copolymer.
2. Brief Description of the Prior Art
The block polysiloxane--polycarbonate copolymers are well known structural
adhesive compositions and are described, for example, in the U.S. Pat.
Nos. 4,027,072 and 4,123,588. Polyamides are also well known polymeric
resins, but they are not often compatible with other resins, for example
polycarbonates since they differ from polycarbonate resins in respect to
structure, molecular weight, functional groups, polarity and solubility.
The present invention is based on our finding that blends of
polysiloxane--polycarbonate block copolymers and polyamide resins in
certain proportions are compatible and may be formed into articles which
exhibit excellent mechanical properties and a resistance to delamination
(an indication of phase compatibility).
SUMMARY OF THE INVENTION
The invention comprises a thermoplastic molding composition, which
comprises;
a block polysiloxane--polycarbonate copolymer; and a thermoplastic,
polyamide.
The invention also comprises articles molded from the compositions of the
invention and which are useful for a wide variety of applications.
The compositions of the invention are useful for the thermoplastic
extrusion of films and for injection molding of complex parts.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION
The block polysiloxane--polycarbonate copolymers employed in the
compositions of the invention are generally well known resins as are
methods of their preparation; see for example the preparative descriptions
given in the U.S. Pat. Nos. 4,027,072 and 4,123,588, both of which are
hereby incorporated herein by reference thereto. Representative of the
polysiloxane--polycarbonate copolymers advantageously employed in the
compositions of the invention are those prepared by reacting (A) a halogen
chain-stopped polydiorgano--siloxane composed of from about 5 to 200
chemically combined diorganosiloxy units consisting essentially of
dialkylsiloxy units which are connected to each other by
silicon-oxygen-silicon linkages wherein each of the silicon atoms has two
organo radicals attached through a carbon-silicon bond, and (B) a dihydric
phenol having the formula:
HO--D--OH
wherein D represents a divalent aromatic radical; and phosgenating the
purified reaction product with or without additional dihydric phenol until
the resulting copolymer achieves a maximum intrinsic viscosity, i.e.;
completion of the reaction.
Typical dihydric phenols useful in formulating the
polysiloxane--polycarbonate copolymers as described above, may be
represented by the general formula:
##STR1##
in which A is an aromatic group such as phenylene, biphenylene,
naphthylene, anthrylene, etc. E may be an alkylene or alkylidene group
such as methylene, ethylene, propylene, propylidene, isopropylidene,
butylene, butylidene, isobutylidene, amylene, isoamylene, amylidene,
isoamylidene, and generally from one to twelve carbon atoms, inclusive.
Where E is an alkylene or alkylidene group, it may also consist of two or
more alkylene or alkylidene groups, connected by a non-alkylene or
non-alkylidene group, such as an aromatic linkage, a tertiary amino
linkage, an ether linkage, a carbonyl linkage, a silicon-containing
linkage, or by a sulfur-containing linkage such as sulfide, sulfoxide,
sulfone, etc. In addition, E may be a cycloaliphatic group of five to
twelve carbon atoms, inclusive (e.g. cyclopentyl, cyclohexyl), or a
cycloalkylidene of five to twelve carbon atoms, inclusive, such as
cyclohexylidene; a sulfur-containing linkage such as sulfide, sulfoxide,
sulfone; an ether linkage; a carbonyl group; a direct bond; a tertiary
nitrogen group; or a silicon-containing linkage such as silane or siloxy.
Other groups which E may represent will occur to those skilled in the art.
R is hydrogen or a monovalent hydrocarbon group such as alkyl of one to
eight carbon atoms, inclusive (methyl, ethyl, propyl); aryl of 6 to 20
carbon atoms, inclusive, (phenyl, naphthyl); aralkyl of 7 to 20 carbon
atoms, inclusive, (benzyl, ethylphenyl); or cycloaliphatic of five to
twelve carbon atoms, inclusive (cyclopentyl, cyclohexyl). Y may be an
inorganic atom such as chlorine, bromine, fluorine, etc; an organic group
such as the nitro group or a nitrile group; an organic group such as R
above; or an oxy group such as OR, it being only necessary that Y be inert
to and unaffected by the reactants and the reaction conditions. The letter
m is any whole number from and including zero through the number of
positions on A available for substitution; p is any whole number from and
including zero through the number of available positions on E; t is a
whole number equal to at least one; and s is any whole number from and
including zero to twenty.
In the typical dihydric phenol compound represented by Formula I above,
when more than one Y substituent is present, they may be the same or
different. The same is true for the R substituent. Where s is greater than
one, E can be the same or different. Where E is a direct bond, the
aromatic rings are directly joined with no intervening alkylene or other
bridge. The positions of the hydroxyl groups and Y on the aromatic nuclear
residues, A, can be varied in the ortho, meta, or para positions; and the
groupings can be in a vicinal, nonsymmetrical or symmetrical relationship,
where two or more ring carbon atoms of the aromatic hydrocarbon residue
are substituted with Y and a hydroxyl group.
Examples of dihydric phenol compounds that may be employed in the above
polymers include:
2,2-bis-(4-hydroxyphenyl)propane, or (bisphenol-A);
2,4'-dihydroxydiphenylmethane;
bis-(2-hydroxyphenyl)methane;
bis-(4-hydroxyphenyl)methane;
bis-(4-hydroxy-5-nitrophenyl)methane;
bis-(4-hydroxy-2,6-dimethyl-3-methoxyphenyl)methane;
1,1-bis-(4-hydroxyphenyl)ethane;
1,2-bis-(4-hydroxyphenyl)ethane;
1,1-bis-(4-hydroxy-2-chlorophenyl)ethane;
1,1-bis-(2,5-dimethyl-4-hydroxyphenyl)ethane;
1,3-bis-(3-methyl-4-hydroxyphenyl)propane;
2,2-bis-(3-phenyl-4-hydroxyphenyl)propane;
2,2-bis-(3-isopropyl-4-hydroxyphenyl)propane;
1,1-bis-(4-hydroxyphenyl)propane;
2,2-bis-(4-hydroxyphenyl)pentane;
3,3-bis-(4-hydroxyphenyl)pentane;
2,2-bis-(4-hydroxyphenyl)heptane;
bis-(4-hydroxyphenyl)phenylmethane;
bis-(4-hydroxyphenyl)cyclohexymethane;
1,2-bis-(4-hydroxyphenyl)-1,2-bis-(phenyl)propane;
2,2-bis-(4-hydroxyphenyl)-1-phenylpropane; and the like. Also included are
dihydroxybenzenes typified by hydroquinone and resorcinol;
dihydroxydiphenyls such as 4,4'-dihydroxydiphenyl; 2,2' dihydroxydiphenyl;
2,4'-dihydroxydiphenyl; dihydroxy-naphthalenes such as
2,6-dihydroxynaphthalene, etc.
Also useful are dihydroxydiphenyl sulfone;
3-chloro-bis-(4-hydroxyphenyl)sulfone; and 4,4'
dihydroxytriphenyldisulfone; etc. The preparation of these and other
useful sulfones are described in U.S. Pat. No. 2,288,282. Hydroxy
terminated polysulfones as well as substituted sulfones using halogen,
nitrogen, alkyl radicals, etc., are also useful.
Dihydroxy aromatic ethers such as those described in U.S. Pat. No.
3,148,172 are also useful as the dihydric phenol. The dihydroxy aromatic
ethers may be prepared as described in U.S. Pat. No. 2,739,171.
Illustrative of such compounds are the following:
4,4'-dihydroxydiphenyl ether;
4,4'-dihydroxytriphenyl ether;
the 4,3'-, 4,2'-, 4,1'-, 2,2'-, 2,3'-dihydroxydiphenyl ethers;
4,4'-dihydroxy-2,6-dimethyldiphenyl ether;
4,4'-dihydroxy-2,5-dimethyldiphenyl ether;
4,4'-dihydroxy-3,3'-diisobutyldiphenyl ether;
4,4'-dihydroxy-3,3'-diisopropyldiphenyl ether;
4,4'-dihydroxy-3,3'-dinitrodiphenyl ether;
4,4'-dihydroxy-3,3'-dichlorodiphenyl ether;
4,4'-dihydroxy-3,3'-difluorodiphenyl ether;
4,4'-dihydroxy-2,3'-dibromodiphenyl ether;
6,6'-dihydroxydinaphthyl-2,2'-ether;
6,6'-dihydroxy-5,5'-dichlorodinaphthyl-2,2'-ether;
4,4'-dihydroxypentaphenyl ether;
4,4'-dihydroxy-2,6-dimethoxydiphenyl ether; and
4,4-dihydroxy-2,5-diethoxydiphenyl ether, etc.
Mixtures of the dihydric phenols can also be employed, and where dihydric
phenol is mentioned herein, mixtures of such materials are considered to
be included. Other dihydric phenols which are suitable are disclosed in
U.S. Pat. Nos. 2,999,835; 3,028,365; 3,334,154; 4,131,575.
Preferred dihydric phenols are represented by those of the formula:
##STR2##
where Z is a member selected from the class consisting of hydrogen, lower
alkyl radicals and halogen radicals and combinations thereof, and R is a
member selected from the class consisting of hydrogen, hydrocarbyl and
halogenated hydrocarbyl radicals.
It will be appreciated from the above description that
polysiloxane--polycarbonate block copolymers employed as a component of
the blends of the invention may be represented by those having recurring
chain units of the formula:
##STR3##
wherein D has the meaning previously ascribed to it; R' represents lower
alkyl; x represents an integer of from 1 to 200 and y represents an
integer such that x+y is 2 to 1000. Other chain units may be present in
the polymer.
The term "halogen" as used herein is embracive of chlorine, bromine, iodine
and fluorine.
The term "hydrocarbyl" as used herein means the monovalent moiety obtained
upon removal of a hydrogen atom from a parent hydrocarbon. Representative
of hydrocarbyl are alkyl of 1 to 20 carbon atoms, inclusive, such as
methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl,
undecyl, decyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl,
heptadecyl, octadecyl, nondecyl, eicosyl, and isomeric forms thereof;
cycloalkyl of 3 to 8 carbon atoms, inclusive, such as cyclopropyl,
cyclobutyl and the like; alkenyl of 2 to 20 carbon atoms, inclusive, such
a vinyl, allyl, butenyl, pentenyl, hexenyl, octenyl, noneyl, decenyl,
undecenyl, dodecenyl, tridecenyl, pentadecenyl, octadecenyl, and isomeric
forms thereof; aryl such as phenyl, naphthyl and the like; aralkyl of 7 to
20 carbon atoms such as phenmethyl, phenpentyl, phendecyl and isomeric
forms thereof.
The term "lower alkyl" is used throughout the specification and claims to
mean alkyl as previously defined, having 1 to 6 carbon atoms, inclusive.
Polyamides used in the present invention are also well known as are methods
of their preparation. For example, they may be obtained by the procedures
described in the Kirk-Othmer Encyclopedia of Chemistry, Second Edition,
Vol 16, Pages 4-6 and the cited references. One method comprises
polymerizing a monoamino-monocarboxylic acid or a lactam thereof having at
least 2 carbon atoms between the amino and carboxylic acid; or by
polymerizing substantially equimolar proportions of a diamine and a
dicarboxylic acid alone or together with a monoamino-monocarboxylic acid
or a lactam thereof as defined above. The dicarboxylic acid may be used in
the form of a functional derivative or equivalent thereof, for example, an
ester or acid chloride. Herein, where a carboxylic acid, ester, or acid
chloride is referred to, those skilled in the art will readily recognize
circumstances where the functional equivalent is preferred, i.e., where a
dicarboxylic acid is described, the diphenyl ester or acid chloride may be
appropriate, or where a diester is described, the carboxylic acid or acid
chloride may be appropriate. The term "substantially equimolar"
proportions (of the diamine and of the dicarboxylic acid) is used to cover
both strict equimolar proportions and slight departures therefrom which
are involved in conventional techniques for stabilizing the viscosity of
the resultant polyamides.
Examples of the aforementioned monoamino--monocarboxylic acids or lactams
thereof which are useful in preparing the polyamides include those
compounds containing from 2 to 16 carbon atoms between the amino and
carboxylic acid groups, said carbon atoms forming a ring with the
--CO--NH-- group in the case of a lactam. As particular examples of
aminocarboxylic acids and lactams there may be mentioned aminocaproic
acid, butyrolactam, pivalolactam, caprolactam, capryllactam,
enantholactam, undecanolactam, dodecanolactam and 3- and 4-aminobenzoic
acids.
Diamines for use in the preparation of the polyamides include the straight
chain and branched, alkyl, aryl and alkyl-aryl diamines. Such diamines
include, for example, those represented by the general formula:
H.sub.2 N(CH.sub.2).sub.n NH.sub.2
wherein n is an integer of from 2 to 16, such as trimethylenediamine,
tetramethylenediamine, pentamethylenediamine, hexamethylenediamine and
octamethylenediamine, as well as trimethyl hexamethylenediamine,
meta-phenylenediamine, para-phenylenediamine, meta-xylylenediamine,
para-xylylenediamine and the like.
The dicarboxylic acids referred to above may be aromatic or aliphatic
dicarboxylic acids of the formula:
HOOC--Z--COOH
wherein Z represents a divalent aliphatic group containing at least 2
carbon atoms or an aromatic moiety. Examples of such acids are sebacic
acid, octadecanedioic acid, suberic acid, glutaric acid, pimelic acid,
adipic acid, terephthalic acid, isophthalic acid and isomeric naphthalene
dicarboxylic acids.
The polyamide ingredient of the compositions of the invention may be either
crystalline, amorphous, or of mixed phase. Typical examples of the
polyamides, or nylons, as these are often called, include for example,
nylon 6, 6/6, 11, 12, 4/6, 6/4, 6/9, 6/10 and 6/12; polyamides resulting
from the reaction of terephthalic acid and/or isophthalic acid and
hexamethylene diamine or trimethyl hexamethylene diamine; polyamides
resulting from the reaction of adipic acid and meta xylylenediamine;
polyamides resulting from the reaction of adipic acid, azelaic acid and
2,2-bis-(p-aminocyclohexyl)-propane; and polyamides resulting from the
reaction of terephthalic acid and 4,4'-diamino-dicyclohexylmethane.
Mixtures and/or copolymers of two or more of the foregoing polyamides or
prepolymers thereof, respectively, are also within the scope of the
present invention.
Polyamides used herein may have for example a number average molecular
weight ranging from about 12,000 to about 60,000 g/mole, preferably from
about 15,000 to about 40,000 g/mole, and most preferably from about 20,000
to about 35,000 g/m, as determined by membrane osmometry; J. Herold, G.
Meyerhoff, Eur. Polym. J. 15,525 (1979). Alternately, preferred polyamides
may be described as having an intrinsic viscosity ranging from about 0.5
to about 1.6 dl/g, preferably from about 0.7 to about 1.4 dl/g, and most
preferably from about 0.9 to about 1.2 dl/g as measured with 40 mg per 10
cc of a 60/40 weight ratio phenol/tetrachloroethane solvent at 30.degree.
C.
The weight ratio of polyamide to poly (siloxane-carbonate) block copolymers
used in the blends of the invention may be within the range of from 5-95
to 95-5. Preferably the compositions of the invention are blends of a
major proportion (50 or more than 50 percent by weight) of the block
polysiloxane--polycarbonate copolymer and a minor proportion (less than 50
percent by weight) of the polyamide.
The compositions of the invention may be compounded with conventional
processing additives to enhance certain physical properties in the
articles to be molded from them. For example, the composition of the
invention may include other ingredients such as impact modifiers,
stabilizers, flame retardants, mold release agents, foaming agents,
reinforcing agents, pigments, and other thermoplastic resins such as
polyesters, polyphenylene ethers, polyimides and the like; fillers, for
example, silica, talc, clay, mica, calcium sulfate and calcium carbonate;
and reinforcing fibers such as, for example, glass and carbon. The amount
of additive present is dependent upon the desired effect and it is within
the knowledge of those skilled in the art to determine the appropriate
amounts.
Preparing the compositions of the invention may be accomplished by
conventional blending, melt blending, solution blending and the like. Melt
blending may be accomplished in a conventional extruder, from which the
admixture may be molded into an article of specific dimensions or further
extruded to a film or sheet product.
The following examples describe the manner and process of making and using
the invention and set forth the best mode contemplated by the inventors of
carrying out the invention but are not to be construed as limiting. Where
reported, the test results provided were determined by the following test
procedures:
Tensile Strength, Modulus and Elongation:
According to the ASTM test method D-638.
Notched Izod Impact Strength (NI):
According to ASTM test method D-256.
Delamination:
A representative injection molded tensile bar of the resin blend is
stretched on an Instron and observed visually for delamination as
indicated by the development of a surface roughness and skinning.
EXAMPLE 1
A blend of 75 parts by weight of a block polysiloxane--polycarbonate
prepared as described in U.S. Pat. No. 4,027,072 (LR 3320 Resin; General
Electric Company) and 25 parts by weight of an amorphous polyamide resin
prepared by the polymerization of hexamethylene diamine with a
substantially equivalent proportion of a mixture of terephthalic acid and
isophthalic acid (Zytel.RTM. 330; E. I. DuPont de Nemours and Company) was
compounded on a Werner Pfleiderer ZSK 30 mm twin screw extruder at
temperatures of from 260.degree.-280.degree. C. The polymeric components
were dried for at least six (6) hours at 110.degree. C. in an air
circulating oven prior to extrusion. The resulting pellets, which
comprised blends of this invention or the "control" blend, were redried
under the same conditions before injection molding into ASTM test
specimens on a 3 oz., 75 ton Newbury injection molding machine. The test
specimens were subjected to testing for physical properties. The test
results are given in the Table 1, below.
EXAMPLE 2
The procedure of Example 1, supra, is repeated except that the Zytel.RTM.
330 polyamide as used therein is replaced with an equal proportion of a
crystalline polyamide resin (Zytel.RTM. 101; E. I. DuPont, supra; a Nylon
6,6). The test results are shown in the Table 1, below.
EXAMPLE 3
The procedure of Example 1, supra, is repeated except that the proportion
of the LR 3320 Resin is decreased to 50 parts and the proportion of
Zytel.RTM. 330 is increased to 50 parts. The test results are shown in the
Table 1, below.
EXAMPLE 4
The procedure of Example 3, supra., is repeated a number of times except
that the Zytel.RTM. 330 as used therein is replaced with an equal
proportion of Zytel.RTM. 101, supra. The test results are given in the
Table 1, below.
EXAMPLE 5
The procedure of Example 1, supra., is repeated except that the proportion
of the LR 3320 resin is decreased to 25 parts and the proportion of
Zytel.RTM. 330 is increased to 75 parts. The test results are shown in the
Table 1, below.
EXAMPLE 6
The procedure of Example 5, supra., is repeated except that the Zytel.RTM.
30 as used therein is replaced with an equal proportion of Zytel.RTM. 101,
supra. The test results are given in the Table 1, below.
TABLE 1
______________________________________
Composition
Examples
(Weight %) 1 2 3 4 5 6
______________________________________
LR3320 75 75 50 50 25 25
Zytel .RTM.
25 50 75
330
Zytel .RTM. 25 50 75
101
Physical
Properties
Tensile Strength
(MPa)
Yield 12.4 19.9 30.3 41.4 73.1 60.7
Break 20.7 24.8 24.1 28.9 70.0 58.7
Tensile 517.1 847.4 1129.3
1615.4
2179.7
2256.3
Modulus (MPa)
Elongation (%)
Yield 10.9 11.0 10.1 5.6 6.9 5.6
Break 118.0 109.1 28.5 32.6 8.0 14.6
Notched 632.4 698.0 73.7 104.7 80.6 80.6
Izod Impact
(J/m)
Delam- No No Slight
Slight
Some Some
ination
______________________________________
EXAMPLE 7-11
A series of LR3320 and Zytel.RTM. 330 blends, in which the
poly(siloxane-carbonate) block copolymer is the major component, were
prepared according to the procedure described in Example 1. Mechanical
properties for these materials are shown in Table 2, below.
TABLE 2
______________________________________
Composition Examples
(Weight %) 7 8 9 10 11
______________________________________
LR3320 75 70 65 60 55
Zytel .RTM. 330
25 30 35 40 45
Mechanical Properties
Tensile Strength (MPa)
Yield 17.3 23.5 30.4 35.2 42.1
Break 25.5 29.0 34.5 35.9 33.8
Tensile 676.2 852.8 1010.2
1049.5
1311.7
Modulus (MPa)
Elongation (%)
Yield 7.1 6.4 5.9 6.2 6.2
Break 117.7 97.8 111.4 103.7 116.7
Notched 753.5 849.7 976.9 1121.2
1244.6
Izod Impact (J/m)
______________________________________
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